MFI is a volume-weighted RSI: it measures buying versus selling pressure from typical price and volume over N bars, bounded 0–100. Above 80 is overbought, below 20 oversold, and MFI/price divergences flag weakening moves. Copy the version for your platform.
#property indicator_separate_window
#property indicator_buffers 1
input int MFIPeriod = 14;
double MFIBuffer[];
int OnInit() {
SetIndexBuffer(0, MFIBuffer);
IndicatorShortName("MFI");
return 0;
}
int OnCalculate(const int rates_total, const int prev_calculated, const double &close[]) {
for (int i = 0; i < rates_total; i++) {
MFIBuffer[i] = iMFI(NULL, 0, MFIPeriod, i);
}
return rates_total;
}#property indicator_separate_window
#property indicator_buffers 1
#property indicator_plots 1
input int MFIPeriod = 14;
double MFIBuffer[];
int OnInit() {
SetIndexBuffer(0, MFIBuffer, INDICATOR_DATA);
IndicatorSetString(INDICATOR_SHORTNAME, "MFI");
return INIT_SUCCEEDED;
}
int OnCalculate(const int rates_total, const int prev_calculated,
const datetime &time[], const double &open[],
const double &high[], const double &low[],
const double &close[], const long &tick_volume[],
const long &volume[], const int &spread[]) {
for (int i = 0; i < rates_total; i++) {
MFIBuffer[i] = iMFI(_Symbol, PERIOD_CURRENT, MFIPeriod);
}
return rates_total;
}//@version=5
indicator("MFI")
length = input.int(14, "Length")
plot(ta.mfi(hlc3, length), "MFI", color=color.red)inputs: Length(14);
Plot1(MFI(Length), "MFI");MFI(14)To use it inside dtcharts, paste any version into the Script Converter and it becomes a native indicator on your chart.